Apparently, pillow fight has gone big time: it's now a competitive "sport" in Toronto, complete with its own Pillow Fight League:

"We've created a new sport," Case explains. "They're not joking around; the fights are real. The girls are going for martial arts training, boxing, and then they're applying a pillow to it."

Like with any league, there are rules - fights are won if a competitor is pinned or surrenders, or if the referee stops the fight. If the fighters are still standing after five minutes, a three-judge panel determines the winner. And, yes, the pillows are all regulation - medium-sized, man-made fibres only - bought during a raucous testing session at Honest Ed's.